Hadronic Penguin B Decays In The Standard And The Two-Higgs-Doublet Models

Abstract

We study in next-to-leading order QCD hadronic penguin $B$ decays in the Standard and two-Higgs-doublet models. Although the gluonic penguin dominates, we find the electroweak contribution non-negligible. In the Standard Model, the branching ratio for $B\to X_s\varphi$ is predicted to be in the range $(0.6\sim 2)\times 10^{-4}$. The ranges of branching ratios for $B\to K\varphi$, $B\to K^{\ast }\varphi$, and $B_s\to \varphi \varphi$ are $(0.4\sim 2)\times 10^{-5}$, $(0.2\sim 1)\times 10^{-5}$, and $(0.15\sim 0.5)\times 10^{-5}$, respectively. The contribution from the charged Higgs boson in two Higgs doublet models depend on $cot\beta$, and can be as large as 40\%.

Revtex, 12 pages + two figures, Preprint, OITS-538, Revised version with new calculations

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• Charming penguin and direct CP-violation in charmless B decays
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